
RS11 Feminized
Grow RS11 Feminized in the UK. Indica genetics at 27% THC, known for uplifted, calm effects.
About RS11 Feminized
Germination & Early Veg (Days 1-14): RS11 seeds typically crack within 48 hours using the damp paper towel method and break soil by around day 3. Early growth was squat and vigorous β broad cotyledons followed by wide, dark-green fan leaves typical of the indica heritage. By day 14 expect around four established nodes with tight internodal spacing. Damping off is uncommon at around 70% relative humidity during this phase.
Vegetative Growth (Weeks 3-6): Lateral branching exploded after topping at the fourth node. The plant filled a 60cm x 60cm footprint by week 5, staying under 40cm tall β ideal for UK growers working in compact tent setups.
Flower (Weeks 1-639): This is where the 77/23 genetics of RS11 truly revealed itself. The caryophyllene aroma appeared in week 3 of flower and intensified steadily. Trichome coverage became visually striking from week 5 onward. Final indoor yield: 450-500 g/m2. Plant height: 120 cm. THC testing at 27%. Difficulty rating: intermediate.
Continuing the Grow Diary
Mid-Flower (Weeks 4-6): The transformation accelerated dramatically. Bud sites that were wispy clusters at week 3 swelled into properly defined colas. Density increased almost daily β squeezing a developing bud at week 5 felt like pressing a firm rubber ball. Fan leaf removal at the start of week 4 improved airflow through the lower canopy, critical since our grow room humidity hovered around 55% through this British autumn.
Late Flower and Ripening (Weeks 637-639): Nutrient input dropped to plain water with a splash of molasses for the final 10 days. The caryophyllene aroma became powerful enough that carbon filtration was essential β our neighbours would have noticed otherwise. Trichomes progressed from clear to milky across the final fortnight, with amber heads appearing on sugar leaves first. A common harvest window is around 15% amber on the calyxes.
Dry and Cure (Post-Harvest): Whole-plant hang dry in a darkened room at 17Β°C and 58% humidity for 12 days. Stems snapped cleanly rather than bending, confirming the moisture content was appropriate for jarring. After 4 weeks of glass jar curing with twice-daily burping (first 2 weeks) then daily burping (weeks 3-4), the bouquet fully developed. Final weight confirmed the 450-500 g/m2 yield estimate. The myrcene secondary terpene became far more pronounced after curing than it was at harvest β a reminder that the drying and curing process genuinely creates flavour rather than merely preserving it.
Flowering: 63 days (9 weeks). Indoor yield: 450-500 g/m2. Outdoor yield: 500-600 g/plant. Plant height: 120 cm. Rated intermediate difficulty. Feminised seeds.
Flavour, Aroma, and Experience
The sensory arc of RS11 unfolds in stages. Initial inhalation at 27% THC brings a warm peppery spice that tingles at the back of the throat. The uplifted, calm effects emerge within minutes, beginning as a pleasant heaviness behind the eyes that migrates downward through the shoulders, chest, and limbs. By the fifteen-minute mark, a deep physical stillness sets in β not sedation exactly, but a reluctance to move that makes the couch remarkably appealing. Duration runs 2-3 hours at moderate doses. The myrcene secondary terpene adds a distinct layer: additional body depth that reinforces the physical dimension.
Terpene Breakdown
Primary: Caryophyllene Β· Secondary: Myrcene Β· Tertiary: Bisabolol. Together these three compounds construct an aromatic signature that evolves throughout the curing process. Freshly dried flower leads with caryophyllene presence, but after three to four weeks in sealed glass jars at 16-18Β°C, the bisabolol undertone strengthens and the overall bouquet develops a layered complexity. Vaporisation between 180Β°C and 195Β°C captures the broadest spectrum of these terpenes β higher temperatures degrade the more volatile bisabolol molecules first.
Suitability and Recommendations
Who grows RS11 successfully? Indoor growers seeking full control over their harvest timeline. Outdoor cultivators who want to decide exactly when flowering begins. Anyone with the space and patience to vegetate this plant to its full potential before triggering bloom. Difficulty is rated intermediate, meaning a moderate learning curve that rewards attention without demanding laboratory-grade conditions. Delivered UK-wide in discreet, unbranded packaging with germination guarantee included.
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Strain Data Sheet
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Feminized Premium
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RS11 Feminized β Breeder Information
Royal King GeneticsBred and stabilised in-house by Royal King Genetics β our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read the full breeding process and about page.
F4 stabilisation on RS11. Each generation we cull aggressively against off-types β the F4 population reflects only the phenos that match the cultivar reference profile.
Stabilise the RS11 cross over four selection rounds.
Chosen for resin density, indica-leaning frame and tight internodes that suit indoor production.
Royal King Genetics in-house mother stock β pollen taken from a sibling male drawn from the same selected pheno population.